patches/gdb/6.7.1/130-dwarf-stack-overflow.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Mon Feb 02 22:00:18 2009 +0000 (2009-02-02)
changeset 1201 c9967a6e3b25
parent 746 b150d6f590fc
permissions -rw-r--r--
Add a patchset for glibc 2_9. Vampirised from the gentoo repository.

/trunk/patches/glibc/2_9/500-ppc-glibc-2.9-atomic.patch | 414 414 0 0 ++++++++++
/trunk/patches/glibc/2_9/140-regex-BZ9697.patch | 111 111 0 0 +++
/trunk/patches/glibc/2_9/190-queue-header-updates.patch | 89 89 0 0 ++
/trunk/patches/glibc/2_9/370-hppa_glibc-2.7-hppa-nptl-carlos.patch | 249 249 0 0 ++++++
/trunk/patches/glibc/2_9/450-alpha-glibc-2.5-no-page-header.patch | 32 32 0 0 +
/trunk/patches/glibc/2_9/270-ldbl-nexttowardf.patch | 68 68 0 0 ++
/trunk/patches/glibc/2_9/330-2.3.3-china.patch | 35 35 0 0 +
/trunk/patches/glibc/2_9/340-new-valencian-locale.patch | 120 120 0 0 +++
/trunk/patches/glibc/2_9/410-2.9-fnmatch.patch | 64 64 0 0 ++
/trunk/patches/glibc/2_9/350-2.4-undefine-__i686.patch | 47 47 0 0 +
/trunk/patches/glibc/2_9/160-i386-x86_64-revert-clone-cfi.patch | 53 53 0 0 +
/trunk/patches/glibc/2_9/420-dont-build-timezone.patch | 19 19 0 0 +
/trunk/patches/glibc/2_9/150-regex-BZ697.patch | 28 28 0 0 +
/trunk/patches/glibc/2_9/290-no-inline-gmon.patch | 38 38 0 0 +
/trunk/patches/glibc/2_9/280-section-comments.patch | 29 29 0 0 +
/trunk/patches/glibc/2_9/180-math-tests.patch | 72 72 0 0 ++
/trunk/patches/glibc/2_9/120-_nss_dns_gethostbyaddr2_r-check-and-adjust-the-buffer-alignment.patch | 35 35 0 0 +
/trunk/patches/glibc/2_9/250-resolv-dynamic.patch | 44 44 0 0 +
/trunk/patches/glibc/2_9/300-2.9-check_native-headers.patch | 22 22 0 0 +
/trunk/patches/glibc/2_9/310-2.3.6-fix-pr631.patch | 50 50 0 0 +
/trunk/patches/glibc/2_9/130-add_prio-macros.patch | 26 26 0 0 +
/trunk/patches/glibc/2_9/260-fadvise64_64.patch | 30 30 0 0 +
/trunk/patches/glibc/2_9/440-alpha-glibc-2.4-xstat.patch | 249 249 0 0 ++++++
/trunk/patches/glibc/2_9/170-2.10-dns-no-gethostbyname4.patch | 35 35 0 0 +
/trunk/patches/glibc/2_9/230-2.3.3-localedef-fix-trampoline.patch | 74 74 0 0 ++
/trunk/patches/glibc/2_9/360-2.8-nscd-one-fork.patch | 45 45 0 0 +
/trunk/patches/glibc/2_9/480-alpha-glibc-2.8-cache-shape.patch | 18 18 0 0 +
/trunk/patches/glibc/2_9/210-2.9-strlen-hack.patch | 109 109 0 0 +++
/trunk/patches/glibc/2_9/320-2.9-assume-pipe2.patch | 59 59 0 0 +
/trunk/patches/glibc/2_9/100-ssp-compat.patch | 193 193 0 0 +++++
/trunk/patches/glibc/2_9/110-respect-env-CPPFLAGS.patch | 30 30 0 0 +
/trunk/patches/glibc/2_9/220-manual-no-perl.patch | 29 29 0 0 +
/trunk/patches/glibc/2_9/390-2.3.3_pre20040117-pt_pax.patch | 35 35 0 0 +
/trunk/patches/glibc/2_9/460-alpha-glibc-2.5-no-asm-elf-header.patch | 38 38 0 0 +
/trunk/patches/glibc/2_9/400-tests-sandbox-libdl-paths.patch | 198 198 0 0 +++++
/trunk/patches/glibc/2_9/240-i386-LOAD_PIC_REG.patch | 23 23 0 0 +
/trunk/patches/glibc/2_9/200-awk-in-C-locale.patch | 23 23 0 0 +
/trunk/patches/glibc/2_9/430-2.7-cross-compile-nptl.patch | 57 57 0 0 +
/trunk/patches/glibc/2_9/380-2.3.6-dl_execstack-PaX-support.patch | 71 71 0 0 ++
/trunk/patches/glibc/2_9/490-ptr-mangling.patch | 114 114 0 0 +++
/trunk/patches/glibc/2_9/470-alpha-glibc-2.8-creat.patch | 19 19 0 0 +
41 files changed, 3094 insertions(+)
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Original patch from gentoo: gentoo/src/patchsets/gdb/6.7.1/80_all_gdb-6.5-dwarf-stack-overflow.patch
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-= BEGIN original header =-
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http://bugs.gentoo.org/144833
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for gdb/ChangeLog:
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2006-08-22  Will Drewry <wad@google.com>
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	    Tavis Ormandy <taviso@google.com>
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	* dwarf2read.c (decode_locdesc): Enforce location description stack
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	boundaries.
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	* dwarfread.c (locval): Likewise.
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-= END original header =-
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diff -durN gdb-6.7.1.orig/gdb/dwarf2read.c gdb-6.7.1/gdb/dwarf2read.c
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--- gdb-6.7.1.orig/gdb/dwarf2read.c	2007-09-05 02:51:48.000000000 +0200
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+++ gdb-6.7.1/gdb/dwarf2read.c	2008-06-17 23:27:46.000000000 +0200
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@@ -9061,8 +9061,7 @@
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    callers will only want a very basic result and this can become a
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    complaint.
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-   Note that stack[0] is unused except as a default error return.
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-   Note that stack overflow is not yet handled.  */
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+   Note that stack[0] is unused except as a default error return. */
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 static CORE_ADDR
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 decode_locdesc (struct dwarf_block *blk, struct dwarf2_cu *cu)
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@@ -9079,7 +9078,7 @@
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   i = 0;
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   stacki = 0;
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-  stack[stacki] = 0;
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+  stack[++stacki] = 0;
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   while (i < size)
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     {
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@@ -9261,6 +9260,16 @@
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 		     dwarf_stack_op_name (op));
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 	  return (stack[stacki]);
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 	}
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+      /* Enforce maximum stack depth of size-1 to avoid ++stacki writing
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+         outside of the allocated space. Also enforce minimum > 0.
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+         -- wad@google.com 14 Aug 2006 */
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+      if (stacki >= sizeof (stack) / sizeof (*stack) - 1)
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+	internal_error (__FILE__, __LINE__,
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+	                _("location description stack too deep: %d"),
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+	                stacki);
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+      if (stacki <= 0)
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+	internal_error (__FILE__, __LINE__,
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+	                _("location description stack too shallow"));
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     }
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   return (stack[stacki]);
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 }